Yeah, I'm thinking a warehouse with two large garage doors rather than one so I can do something like intake for one door, have the miners lined up in the middle, exhaust for the other door and create a "U" if I were to visualize the airflow. Cold air in one side of the room on the intake side of the miners, hot air in the other side of the room on the exhaust side of the miners. It will be more expensive but if the numbers don't lie, upgrading to a larger warehouse won't be but an extra 1% of the profits per month with those new Antminer L3+ miners. It's also more likely that power won't be an issue with a larger place. Also like I said above, if I make even a fraction of what the numbers tell me I will with $40k in L3+ miners, I'm thinking it would be beneficial to rent a place up north where electricity is cheaper and it's colder all year and just buy a plane ticket whenever I need to visit it, which again would be pennies on the dollar for what the numbers say I "could" profit.